GE moisture.iq User Manual page 106

Chapter 8. Troubleshooting
Screen Message
MIS NO LINK
Chan X: MIS BAD CRC
(CRC - Cyclic
Redundancy Check)
ADC Failure!
f ( ): Invalid
f ( ): Div. by 0
fp ( ): Math error
f ( ): Missing #
f ( ): Extra #
f ( ): Missing Op
f ( ): Extra Op
f ( ): Too Complex
f ( ): Missing (
f ( ): Missing)
Under Range (See
Range Error
Description on
page 52.)
94
Table 11: Screen Messages and the Possible Causes (cont.)
Possible Cause
Communication with a
Moisture Image Series
Probe has failed.
The Moisture Image Series
Probe is disconnected or
damaged.
Communication link with
Moisture Image Series
Probe is established, but
data is intermittent or
distorted.
Primary A/D converter has
failed.
User function invalid.
User function attempted to
divide by zero.
User function attempted
illegal operation, such as
the square root of –2.
User function has missing
operand for an operator
User function has extra
operand or missing
operator.
User function has missing
operator or extra operand.
User function has extra
operator or missing
operand.
User function has too
many terms, or the
constant has
>23 digits.
User function has
unbalanced parentheses.
User function has
unbalanced parentheses.
The input signal is below
the calibrated range of the
probe.
System Response
After the moisture.IQ
performs 5 checks, it
replaces data with the
following default values:
dew point = -110°C
temperature = 70°C
pressure = 0 psi.
No Link Error
Returns to zero.
User function invalid.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Error message.
Alarms and outputs
respond as programmed.
Refer to
Chapter 4.
Action
Check the Moisture Image Series
Probe connections.
Replace the Moisture Image Series
Probe.
Check for cable breaks or high
electro magnetic interference
(EMI).
Return unit for service.
Reenter or check user function.
Check logic of user function.
Check logic of user function.
Check user function.
Check user function.
Check user function.
Check user function.
Check user function.
Add missing parentheses.
Add missing parentheses.
If measurement is not expected to
be below scale, send probe to
BHGE for evaluation.
moisture.IQ User's Manual